1. Product Title CWDM / CCWDM Multiplexer, 2–18CH, 20 nm Channel Spacing 2. Product Overview GracyFiber CWDM / CCWDM Multiplexer provides wavelength multiplexing and demultiplexing for optical networks requiring multiple channels over a single fiber infrastructure. The product family supports 2CH, 4CH, 6CH, 8CH, and 18CH configurations with 20 nm channel spacing across an operating wavelength range of 1260–1660 nm . 3. Key Features 2CH / 4CH / 6CH / 8CH / 18CH configurations